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Service Letters
Date | Number | Status | Nomenclature |
---|---|---|---|
Date | Number | Status | Nomenclature |
September 13, 2005 | L-179 | Active | Verification of Mandatory Cluster Fitting Replacement |
December 24, 1973 | L-79 | Incorporated | Vendor Warranty and Repair - Police Patrol Equipment |
September 13, 2005 | L-178 | Active | Upgrade of 269A4564-5 Linear Actuator (PIN SA - 269K-116) |
April 9, 1982 | L-127.1 | Active | Unlimited Service Life PN 269A5430 and -1 Driving Spl i ne Fitting and 269A6030 Driven Spline and Inspection Criteria |
February 27, 1984 | L-133 | Active | Unauthorized Tailboom Assemblies for 269 Series Helicopters |
September 1, 1981 | L-124 | Incorporated | Torque Value Established for PN 269A5714 Tail Rotor Drive Shaft Forward Reta i ning Nut |
April 6, 1972 | L-60.1 | Incorporated | Timing of Magneto and Engine Ignition System |
March 2010 | DL-015 | Active | Technical Publications - Policy & Price Changes, 2010 |
March 11, 2010 | L-183 | Active | Technical Publications - Policy & Price Changes, 2010 |
February 20, 1969 | L-54 | Active | Tailboom Spoiler PN 269A2320-5 |
April 29, 1970 | L-55 | Incorporated | Tailboom Center Support (Saddle) Fitting PN 269A2324-7 |
May 1, 1972 | L-69 | Incorporated | Tail Rotor Gearbox PN 269A6027 - Interchangeability Between Model 269 Series Helicopters |
September 1, 1982 | L-126.1 | Available upon request | Summary of FAA Supplemental Type Certificates for Hughes Model 269 Series Helicopters |
August, 30, 2011 | L-185 | Active | SUBJECT: MAIN ROTOR TRANSMISSION OIL SEAL COLLAR USAGE AND EFFECTIVITY |
April 13, 1900 | L-160 | Active | Strut and Bracket Assembly - Belt Drive Installation |
December 8, 2008 | DL-012 | Active | STRUCTURAL ENHANCEMENT OF TAIL ROTOR PEDAL MOUNT |
August, 30, 2011 | L-186 | Active | Specified Fuels Used in 269 Series Helicopters |
August 22, 2001 | L-173 | Active | Special Inspection of Main Rotor Transmission Magnetic Plug |
February 11, 1986 | L-135 | Superseded N-214 | Service Life Cutoff Limit |
February 11, 1986 | L-138 | Active | Service Life Cutoff Limit |
February 10, 1984 | L-45.2 | Superseded L-145 | Salvage Parts - 269 Series Helicopters |
March 29, 1967 | L-17 | Incorporated | Retrofit - Clutch Spring Attachment Strap |
January 9, 2009 | L-181 | Active | Retirement of Certain Engine and Rotor Tachometer Cables |
June 8, 1966 | L-1 | Incorporated | Input Spline Coupling PN 269A5607 Time Increase - Tail Rotor Transmission |
June 8, 1966 | L-2 | Incorporated | Recommended Overhaul Period - Rotorcraft Powerplants |
October 5, 1966 | L-3.1 | Incorporated | Interim Revision - Handbook of Maintenance Instruction (HMI) Re: 1200 Hour Periodic Inspection of Main Rotor Gear Drive Assembly |
July 21, 1966 | L-4 | Cancelled | Rebate Time Allowance - Lower Coupling Drive Shaft Assembly PN 5504-5 |
August 1, 1966 | L-5 | Incorporated | Replacement of Thermostatic Oil Cooler By Pass Valves, Per AVCO, Lycoming Division, Service Bulletin No. 304A (Red Bordered Mandatory) (dated), 24 June 66 |
November 23, 1966 | L-6.1 | Incorporated | Bendix Fuel Injection System, RSA Series Trouble Shooting Technique for Identifying Fuel to Air Seal Leak |
August 22, 1966 | L-7 | Incorporated | Belt Drive Clutch Engagement Spring PN 5476 -Availability and Utilization |
October 4, 1966 | L-8 | Incorporated | Illumination Intensity - Engine Instrument |
October 13, 1966 | L-9 | Active | Replacement - Fuel Flow Tubing Assembly |
November 7, 1966 | L-10 | Incorporated | Pressure Variation with Temperature - Amphibious Float Landing Gear |
December 1, 1966 | L-11 | Incorporated | Intake Pipe Replacement Per AVCO - Lycoming Division Service Instruction No. 1162 (dated), 16 Sept 1966 |
December 5, 1966 | L-12 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Main and Tail Rotor Overspeed Criteria |
January 11, 1967 | L-13 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Limited Life and Component Overhaul List |
February 20, 1967 | L-14 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Inspection Sudden Stoppage Drive System |
February 21, 1967 | L-15.1 | Incorporated | Definition - Limited Parts |
August 23, 1967 | L-16 | Active | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Maintenance Instruction for Low Tip Speed Tail Rotor Assembly |
March 29, 1967 | L-17 | Incorporated | Retrofit - Clutch Spring Attachment Strap |
April 1, 1967 | L-18 | Cancelled | Ordering - Main Rotor Blades |
April 1, 1967 | L-19 | Incorporated | Replacement - Internal Seal, Fuel Drain Valve |
April 1, 1967 | L-20 | Superseded N-41 | Lycoming Service Letter No . L157A (dated), 9 Dec 66; Engine Mounted Full-flow Oil Filter |
April 1, 1967 | L-21 | Incorporated | Chemical Attack - Re: Bolteron and Royalite Parts |
August 22, 1967 | L-22 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Installation Pitch Control Rod Inspection of Pitch Bearing Cases, Main Rotor Swashplate Assembly and Swashplate Scissors Link |
June 16, 1967 | L-23 | Incorporated | Approved Fuels for Allison Model 250 Series Engine |
May 5, 1967 | L-24 | Incorporated | Proper Height of Contact Spring in - 200 Bendix Magneto Distributor Block |
September 5, 1967 | L-25 | Active | Parts Replacement - Main Rotor Shaft PN 5305-3, Hub 5305-5 and Lifting Eye 5305-7 |
July 7, 1967 | L-26 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: PN B1145-1 Main Rotor Blade Assembly |
July 10, 1967 | L-27 | Incorporated | Allison Model 250 Engine - Sales and Service |
July 27, 1967 | L-28 | Cancelled | Conversion of HO-360 - Bl A or HO-360-BlB Carburated Engine to HiO-360-BlB Fuel Injection Engine |
September 22, 1967 | L-29 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Lower Coupling Drive Shaft PN 269A5504 (basic) and -5 Shaft Assembly- Wear Tolerance |
September 25, 1967 | L-30 | Incorporated | New Tail Rotor Blade PN 6124-9 |
October 2, 1967 | L-31 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Lower Coupling Drive Shaft PN 269A5504 (basic) and -5 Shaft Assembly- Wear Tolerance Gear Oleo Dampers |
October 31, 1967 | L-32 | Incorporated | Bendix Corporation; RS Fuel Injection Service Bulletin No. 23 (dated), 10 Jan 1967 |
November 17, 1967 | L-33 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Overhaul Cycle, Tail Rotor Drive Transmission Assembly |
December 13, 1967 | L-34 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Special Torque Data - Forward Nut, Lower Pulley Drive Shaft |
December 14, 1967 | L-35 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: 25 Hour Periodic Inspection |
December 28, 1967 | L-36 | Active | Lycoming Service Instruction No . 1141 (dated), 20 Oct 1967 - Subject: Replacement of Wom Starter Ring Gears |
January 2, 1968 | L-37 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Overhaul Cycle; Main Rotor Gear Drive Assembly |
January 31, 1968 | L-38.1 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Inspection - Possible Retirement, Main Rotor Blades |
February 27, 1968 | L-39 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Inspection - Cable Belt Drive Clutch Control |
March 14, 1968 | L-40 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: 400 Hour Inspection - Droop Stop Retainer Ring |
March 14, 1968 | L-41 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: 600 Hour Inspection - Droop Stop Retainer Ring |
March 14, 1968 | L-42 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Limited Life; Main Rotor Drive Shaft and Main Rotor Gear Box Pinion Assembly |
April 5, 1968 | L-43 | Incorporated | Mixing Main Rotor Transmission Gears |
April 18, 1968 | L-44 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Sudden Stoppage Inspection; Lateral Control Bellcrank PN 269A7506 |
February 10, 1984 | L-45.2 | Superseded L-145 | Salvage Parts - 269 Series Helicopters |
February 18, 1973 | L-46.2 | Bendix Energy Controls Division - Field Service Representation | |
July 16, 1968 | L-47 | Incorporated | Interim Revision - Handbook of Maintenance Instructions (HMI) Re: Wear Tolerances - PN 269A5618 Output Shaft (RMI) Re: Wear Tolerances - PN 269A5618 Output Shaft.Tail Rotor Transmission |
September 11, 1968 | L-48 | Incorporated | Balance Weight Installation - Main Rotor Blades |
March 12, 1969 | L-49.1 | Active | Grommet PN 269A2309, Tail Rotor Control Rod Guide Assembly |
February 14, 1978 | L-50.8 | Superseded L-113.6 | Exchange Program - Major Helicopter Components |
October 18, 1968 | L-51 | Incorporated | Main Rotor Blade Categories A, B, C and D |
November 22, 1968 | L-52 | Incorporated | Parts Replacement Kit PN 269A5540-901 Belt Drive Clutch Damper Assembly |
December 9, 1968 | L-53 | Incorporated | Inspection of Landing Gear Skid Assembly |
February 20, 1969 | L-54 | Active | Tailboom Spoiler PN 269A2320-5 |
April 29, 1970 | L-55 | Incorporated | Tailboom Center Support (Saddle) Fitting PN 269A2324-7 |
June 12, 1970 | L-56 | Incorporated | Oil Pressure Limitations |
November 4, 1970 | L-57 | Incorporated | New Attaching Hardware - Engine Cooling Shroud Side Panels |
April 19, 1971 | L-58 | Incorporated | New Heavy Wall Drive Shaft for High Speed Tail Rotor System |
July 6, 1971 | L-59 | Incorporated | Ordering Replacement Engine Air Intake Pipes |
April 6, 1972 | L-60.1 | Incorporated | Timing of Magneto and Engine Ignition System |
August 23, 1971 | L-61 | Incorporated | Increased Overhaul Time Interval for Main and Tail Rotor Transmissions |
October 8, 1971 | L-62 | Incorporated | Bendix Electrical Components Division - Service Bulletin No . 551 (dated), September 1971 - New Distributor Block Lubricant |
November 1, 1971 | L-63 | Active | Lycoming Service Bulletins No. 340 and 341 (dated), 27 August 1971 |
December 13, 1971 | L-64 | Incorporated | Lamp Replacement - PN 269A4322 Anticollision Light Assembly (Grimes) |
January 21, 1972 | L-65 | Incorporated | Abrasion Tape Application - Main Rotor Blades PN 269B1145, |
February 14, 1972 | L-66 | Incorporated | Desert Oil Cooler Kit |
April 6, 1972 | L-67 | Active | Improved Main Rotor Blade Damper Assembly PN 269Al927-5 |
August 7, 1972 | L-68.1 | Incorporated | Lycoming Service Bulletins, No. 336B (dated), 19 June 1972 and No . 343A (dated), 18 February 1972 - Periodic Inspection - Lubrication and Parts Replacement for Bendix S4LN-1208 Magnetos |
May 1, 1972 | L-69 | Incorporated | Tail Rotor Gearbox PN 269A6027 - Interchangeability Between Model 269 Series Helicopters |
July 24, 1972 | L-70 | Incorporated | Lycoming Service Bulletin No. 336B (dated), 19 June 1972 Re: Periodic Inspection and Lubrication of Magneto Distributor Bushing; Periodic Parts Replacement of Left Magneto |
September 12, 1972 | L-71 | Active | Lycoming Service Bulletin No . 355 (dated) , 4 August 1972 - Alternator Fan Replacement (Prestilite Bulletin No. ASM-8) |
November 1, 1972 | L-72 | Incorporated | Lycoming Service Instruction No. 1255 (dated), 4 August 1972 -Thermostatic Oil Cooler Bypass Valve Replacement |
January 2, 1973 | L-73 | Incorporated | Inflated Float Installation - Battery Acid Spillage |
January 2, 1973 | L-74 | Incorporated | Fuel Shutoff Control Cable - Rerouting to Reduce Operating Friction |
February 13, 1973 | L-75 | Incorporated | Increase Ring Gear to Carrier Torque |
March 1, 1973 | L-76 | Incorporated | Corporate Name Change |
July 31, 1973 | L-77 | Incorporated | Avco Lycoming Service Bulletin No . 365 (dated), 1 June 1973 - Bendix Magneto Conversion to Incorporate Flexible Drive |
October 22, 1973 | L-78 | Incorporated | New Main Transmission Input Pinion Forward Roller Bearing PN 269A5051-20 |
December 24, 1973 | L-79 | Incorporated | Vendor Warranty and Repair - Police Patrol Equipment |
April 1, 1974 | L-80 | Active | High Speed Rotor PN 269A6004 - Spare Assembly and Component Availability |
May 31, 1974 | L-81 | Incorporated | Discussion of Hughes Serial Numbering Method |
August 5, 1974 | L-82 | Incorporated | Inflatable Floats - Service , Maintenance and Repair Facilities |
November 11, 1974 | L-83 | Available Upon Request | Replacement - Tail Rotor Control Pedal Retaining Pins |
November 18, 1974 | L-84 | Incorporated | Replacement - 24V Clutch Actuator Noise Filter Capacitors |
May 5, 1975 | L-85 | Incorporated | Bendix Fuel Injection System Flow Divider Installation on HiO-360 Series Engine - Inspection/Modification |
November 5, 1979 | L-86.2 | Incorporated | Main Transmission - Ring , Pinion Gear Compatib i lity |
August 11, 1975 | L-87 | Incorporated | New Conical Type Teeter Bearings for LTS Tail Rotor Assembly |
December 23, 1900 | L-88 | Incorporated | Proper Correlation of Throttle and Collective Pitch Controls |
December 11, 1975 | L-89 | Incorporated | New Fiberglass Canopy Slat Installation PN 269A269A2216 |
July 26, 1976 | L-90 | Incorporated | New Tail Rotor Blades with Cadmium Plated Spar Assembly for Improved Corrosion Protection |
July 26, 1976 | L-91 | Incorporated | Alternate Lamp for Engine Instrument 3-Pack Units PN 269A4112 Series |
October 11, 1976 | L-92 | Incorporated | New PN 269B1145-25 Main Rotor Blade with Trim Tab |
August 8, 1977 | L-93 | Incorporated | New Aluminum Isolator Brackets for Mounting Engine Cooling Scroll Reduce Stress Levels in Engine Hanger Assemblies |
July 22, 1977 | L-94 | Active | Fiberglass Canopy Slat Installation PN 269A2216 - Attachment of Night Flying Position Lights |
December 15, 1977 | L-95 | Active | New PN 269Al 185-1 and 269Al 190-l Main Rotor Blade Assemblies with Leading Edge Abrasion Strip |
April 10, 1978 | L-96 | Incorporated | Paint Schedules and Ordering Procedures |
May 22, 1978 | L-97 | Incorporated | Inspection and Serviceability - Main Rotor Thrust Bearing PN 269A5050-63 and -73 |
November 2, 1981 | L-98.1 | Incorporated | Approved Grease for Drive System Rotating Bearings |
July 15, 1978 | L-99 | Incorporated | Installation of Engine Exhaust Flange Gaskets |
January 7, 1980 | L-100.1 | Cancelled | Exchange Program - Major Helicopter Componen t s |
August 1, 1979 | L-101 | Incorporated | Limited Life Increase for PN 269A5050-63 and -73 Main Rotor Thrust Bearings; Unlimited Service Life for PN 369A5408 Series Tail Rotor Transmission (LTS) Output Shaft |
September 28, 1979 | L-102 | Incorporated | New PN 269A8251 Heat Insulation Kit for Model 269C Engine Exhaust System |
August 27, 1979 | L-103 | Incorporated | Main Transmission Input Pinion Shaft PN 269A5103 and -9 - Limited Life Increased to 6000 Hours |
September 28, 1979 | L-104 | Active | Installation of Engine Exhaust Collector Required for 2050 LB Gross Weight Helicopter Operation |
November 19, 1979 | L-105 | Incorporated | Belt Drive Transmission PN 269A5559-3 Coupling Shaft - Limited Life Increase to 6000 Hours |
February 1, 1982 | L-106.1 | Incorporated | Drive System Rotating Bearings - Daily Purge with Mobil 28 Grease |
December 10, 1979 | L-107 | Incorporated | New Comfort Clips for Sam Browne Seat Belt and Shoulder Harness Assemblies |
January 1, 1980 | L-108 | Incorporated | New Wedge Base Lamp Socket PN 2973932 for Both Instrument Cluster Assemblies |
March 24, 1980 | L-109 | Incorporated | Bushing Requirements for PN 269A2324-7 Tailboom Center Support (Saddle) Fitting Installation |
November 19, 1982 | L-110.l | Active | 12V Battery Relay PN MS24166Dl - Corrosion Protection and Relay Replacement |
June 9, 1980 | L-111 | Superseded by L-156 | New Seal Requirement for Overhaul of PN 269A3150 - 5 and -7 Landing Gear Damper Assemblies |
June 9, 1980 | L-112 | Incorporated | Periodic Cleaning and Lubrication of Sealed Bearing - Upper Pulley, Lower Coupling Drive Pulley, Idler Pulley and Main Rotor Drive Shaft Thruster Bearing |
February 12, 1985 | L-113.6 | Incorporated | Exchange Program - Selective Helicopter Components |
February 15, 1983 | L-114.2 | Incorporated | New Drive Belt H - Frame with PN 269A5050 - 78 Upper Pulley Bearing Having Service Life of 3000 Hours |
September 30, 1980 | L-115 | Active | Compliance with FAA Airworthiness Directives and Hughes Mandatory (Red Border) Service Information |
December 8, 1980 | L-116 | Cancelled | Customer Request for Original Weight and Balance Data |
July 21, 1981 | L-117.1 | Incorporated | Periodic Inspection and Replacemen t - Main Rotor Hub Attaching Bolts PN 269Al229 and 269Al232 |
July 1, 1983 | L-118.5 | Cancelled | Biannual Listing of Airworthiness Directives versus the Associated Hughes Service Information Notice |
November 2, 1981 | L-119.l | Incorporated | Aeroshell 14 Grease Only Approved Lubricant for Rotor System Oscillating Bearings |
July 31, 1981 | L-120 | Incorporated | Ground Handling Precautions for Main Rotor Systems Equ i pped w i th Elas t omericdampers |
August 21, 1981 | L-121 | Incorporated | Corrosion Control Manual now Available for General Distri b ution and Purchase |
September 1, 1981 | L-122 | Superseded N - 214 | Finite Life Increase for PN 269A6065 and 369Al 706 Tail Rotor Retention Straps Installed on Model 269C Helicopters |
September 1, 1981 | L-123 | Incorporated | New Protective Boot for 269A6034 Series LTS Tail Rotor Assembly |
September 1, 1981 | L-124 | Incorporated | Torque Value Established for PN 269A5714 Tail Rotor Drive Shaft Forward Reta i ning Nut |
October 1, 1981 | L-125 | Incorporated | New PN 269A5498 - 5 Lower Coupling Pulley Drive Shaft Provides as Replacement for PN 269A5498 - 3 Drive Shafts |
September 1, 1982 | L-126.1 | Available upon request | Summary of FAA Supplemental Type Certificates for Hughes Model 269 Series Helicopters |
April 9, 1982 | L-127.1 | Active | Unlimited Service Life PN 269A5430 and -1 Driving Spl i ne Fitting and 269A6030 Driven Spline and Inspection Criteria |
February 15, 1982 | L-129 | Incorporated | PN 269A5050 - 74 Idler Pulley Bearing and PN 269A5050- 78 Belt Drive H-Frame Upper Bearing - Service Life Increased to 3000 Hours |
March 26, 1982 | L-130 | Incorporated | New PN 269A3150-9 Aft Landing Gear Damper Assemblies Increase Static Height of Tail Skid for 269C Helicopters Operating in Cold Weather or with Increased Gross Weight |
February 1, 1984 | L-131.1 | Active | Distribution and Shipment of Schweizer - Hughes Model 300 Publications |
November 24, 1982 | L- 132 | Active | New Tailboom Assembly PN 269A2320 - 9 |
February 27, 1984 | L-133 | Active | Unauthorized Tailboom Assemblies for 269 Series Helicopters |
March 9, 1984 | L-134 | Cancelled | Return of Parts/Components to Schweizer Aircraft Corp. |
February 11, 1986 | L-138 | Active | Service Life Cutoff Limit |
March 8, 1986 | L-136 | Cancelled | Loan of Schweizer Throttle Governor Wire Harness Test Box PN 269A4995-301-99801-3 |
March 30, 1900 | L-137 | Active | Replace Aircraft Identification Plates |
January 2, 1987 | L-139 | Incorporated | Cleaning of Elastomeric Dampers |
January 2, 1987 | L-140 | Active | Proper Operations of Trim Controls |
January 2, 1987 | L-141 | Active | Explanation of Temporary Revision System |
January 2, 1987 | L-142 | Incorporated | Life Limit Update |
January 2, 1987 | L-143 | Incorporated | Overhaul Schedule Update |
September 29, 1987 | L-144 | Incorporated | Breakaway Torque Increase - MR Bearing Assembly |
March 10, 1988 | L-145 | Active | Company Policy - Unapproved Parts |
September 1, 1987 | L-146 | Active | Avco Lycoming Service Bulletins - No. 454B Replacement of Oil Pump Impellers, No. 456C Replacement of Oil Pump Impellers and No.477A Inspection and Rework of PNLW-18790 Rocker Arm Assembly |
December 15, 1987 | L-147 | Active | Publication Index - Major Change in Scope and Revision Process |
February 1, 1989 | L-148 | Active | Lubricating Oil |
August 24, 1990 | L-149 | Active | Changes to Notice and Letter Nomenclature |
July 24, 1996 | L-150.2 | Active | New Belt Drive Transmission H-Frame |
May 30, 1991 | L-151 | Active | Printer Errors in Notice and Letter Sets January 1990 |
November 7, 1991 | L-152 | Active | New Part Numbers for Tail Rotor Transmission Assembly |
November 7, 1991 | L-153 | Active | Extended Warranty Policy for Pinion and Ring Gears Installed in Main Rotor Transmissions Affected by Service Bulletin in Main Rotor Transmissions Affected by Service BulletinB-244 |
May 8, 1992 | L-154 | Active | Repair Facilities for Corrosion Damage Inspection of Main Rotor Driveshaft P/N 269A5305. Ref. Service Bulleting B-243 |
April 29, 1993 | L-155 | Active | Main Rotor Rod End Bearings and Lead-Lag Bushings |
April 29, 1993 | L-156 | Incorporated | New Improved Landing Gear Dampers |
April 29, 1993 | L-157 | Active | Overhaul Kits for Fuel Shut-Off and Drain Valves |
April 29, 1993 | L-158 | Active | Improper Maintenance Procedures in Installation of the 269A2324 Series Tail Boom Support Fitting (Saddle Fitting) Which Results in a Hazardous Flight Condition |
April 30, 1995 | L-159 | Incorporated | Additional Lubricants for Lower Coupling Drive Shaft |
April 13, 1900 | L-160 | Active | Strut and Bracket Assembly - Belt Drive Installation |
April 7, 1997 | L-161 | Active | New Improved Clutch Spring Retainer |
April 15, 1997 | L-162 | Active | Compliance of Service Notice N-59, AD 68-21-05, and AD 97-05-06against 269A5050-50, -53, and -73 Main Rotor Drive Shaft Thrust Bearing (Applicable to Models 269A, TH-55A, Shaft Thrust Bearing (Applicable to Models 269A, TH-55A,269A-l & 269B) |
September 27, 1999 | L-163 | Active | Exchange Program for Elastomeric Tail Rotor Fork |
September 27, 1999 | L-164 | Active | New Electric Driven Airframe Fuel Pump |
September 2, 1999 | L-165 | Active | Compliance with Airworthiness Directive 99-17 - 10 |
December 13, 1999 | L-166 | Active | New Retirement Life for 269A51053-51 Input Pinion and 269A5194 Carrier Assembly Installed in Model 269C-l Helicopters |
June 6, 2000 | L-167 | Active | 300CB Engine Time Between Overhaul Extension |
August 10, 2000 | L-168 | Active (UK Only) | New SA-269K-101 Fuel System Vent Kits |
September 1, 2000 | L-169 | Active | New SA - 269K-101 Fuel System Vent Kits |
December 1, 2000 | L-170 | Active | Introduction of New 269A5175-35 and - 37 Main Rotor Transmission Assemblies |
January 25, 2002 | L-172.1 | Active | New Design - Tail Rotor Drive Shaft |
August 22, 2001 | L-173 | Active | Special Inspection of Main Rotor Transmission Magnetic Plug |
September 11, 2001 | L-174 | Active | Introduction of New Lower Pulley Bearing Removal Tool |
September 11, 2001 | L-175 | Active | Optional Anti-Collision Light Conduit in New 269A2320 - 17 Tailboom Assemblies |
September 13, 2002 | L-177 | Active | AFT Cluster Fitting Modification Kit (PIN SA-269K-0106 - l) |
September 13, 2005 | L-178 | Active | Upgrade of 269A4564-5 Linear Actuator (PIN SA - 269K-116) |
September 13, 2005 | L-179 | Active | Verification of Mandatory Cluster Fitting Replacement |
September 26, 2008 | L-180 | Active | Function of Tail Rotor Driveshaft Damper Block |
November 10, 2000 | DL-007 | Active | ORIENTATION OF MAIN ROTOR TRANSMISSION BACKLASH SHIM |
January 9, 2009 | L-181 | Active | Retirement of Certain Engine and Rotor Tachometer Cables |
June 17, 2009 | L-182 | Active | ELT Direct Replacement Authorization |
March 11, 2010 | L-183 | Active | Technical Publications - Policy & Price Changes, 2010 |
August, 30, 2011 | L-185 | Active | SUBJECT: MAIN ROTOR TRANSMISSION OIL SEAL COLLAR USAGE AND EFFECTIVITY |
August, 30, 2011 | L-186 | Active | Specified Fuels Used in 269 Series Helicopters |
January 4, 2012 | L-187 | Active | To align with Sikorsky Aircraft Corporation’s Standard of Work for technical information, the following changes have been made to notifications. |
December 6, 2021 | L-188 | Active | 269A1231 MAIN ROTOR BEARING SET DELIVERED ON OR AFTER JUNE 17, 2021. |
September 23, 1998 | DL-001 | Active | MODIFICATION OF AIRCRAFT PARTS CORPORATION STARTER/GENERATOR |
July 6, 1999 | DL-002 | Active | NEW SPLINED MAIN ROTOR HUB AND DRIVE SHAFT DESIGN WITH INCREASED TIME LIFE |
July 6, 1999 | DL-003 | Active | NEW DESIGN MAIN ROTOR DRIVE SHAFT THRUST BEARING |
September 2, 1999 | DL-004 | Active | COMPLIANCE WITH AIRWORTHINESS DIRECTIVE 99-17-10 |
May 2, 2000 | DL-005 | Active | INTERFACE AND PROGRAMMING OF THE GPS150/150XL TO DISPLAY SHADIN FUEL FLOW DATA ON THE GPS |
August 11, 2000 | DL-006 | Active | MODIFICATION KIT FOR 269D/330 START/GENERATOR ELECTRICAL SYSTEM |
December 1, 2000 | DL-008 | Active | INTRODUCTION OF NEW 269A5175-39 MAIN ROTOR TRANSMISSION ASSEMBLY |
January 25, 2002 | DL-009 | Active | NEW DESIGN - TAIL ROTOR DRIVE SHAFT |
March 1, 2006 | DL-010 | Active | EXCHANGE PROGRAM FOR CEF INDUSTRIES 8618M33 N2 TRIM ACTUATOR |
July 21, 2006 | DL-011 | Active | INTRODUCTION OF NEW MAIN ROTOR TRANSMISSION ASSEMBLY AND BELT DRIVE TRANSMISSION ASSEMBLY CONTAINING AN EXTENDED HUB UPPER PULLEY ASSEMBLY |
December 8, 2008 | DL-012 | Active | STRUCTURAL ENHANCEMENT OF TAIL ROTOR PEDAL MOUNT |
March 11, 2010 | DL-016 | Active | 2010 PUBLICATIONS SCHEDULE |
June 11, 2009 | DL-013 | Active | ENGINE/TRANSMISSION OIL COOLER IMPELLERS |
November 13, 2009 | DL-014 | Active | C20W FUEL PUMP BYPASS CHECK |
March 2010 | DL-015 | Active | Technical Publications - Policy & Price Changes, 2010 |
July 16, 2010 | DL-017 | Active | LIMITED TIME UPGRADE OFFER |
September 21, 2011 | DL-019 | Active | Main Transmission Ring Gear Carrier Assembly – Request for Information |
January 2, 2012 | DL-020 | Active | 269 Series Service Bulletins, Service Letters and Temporary Revisions |